Battery Management Systems

STANDEX MEDER

High voltage reed relay: KT Series

KT relay series from Standex Electronics is ideal for the economic applications that require high isolation properties together with reliable and precise switching. It is ideal for use in green applications, such as battery measurement systems, in photovoltaic technology or electro and hybrid vehicles.

Applications

• Photovoltaic/solar systems • Inverters • Hybrid vehicles • E-Mobility (battery management systems) • Test and measurement • Medical

KT Series of High Isolation Reed Relays for SMD & THT in a compact housing

It is particularly helpful in measuring isolation resistance and leakage currents across several electric circuits while providing great galvanic isolation. This is being used to prevent an injury, further current leakages and power loss. Can find its place also in medical or test & measurement equipment.

Features & Benefits • Small size 30mm x 8.6mm x 10.6mm • High isolation resistance of minimum 10^13Ω • Breakdown voltage across open switch up to 5kVDC • Dielectric strength coil/contact of over 7kVDC • Low leakage current • Switching voltages of 1.000V • 1A switching current, 2.5A carry current • Coil voltages 3V, 5V, 12V and 24V • Available in THT and SMD • Tested in accordance with AEC-Q200,

UL-Listed • Dynamically tested contacts can perform millions of reliable operations • 5V coil and THT pinout recommended for automotive applications

Sensata/Cynergy3

High voltage reed relay: D-HR Series

Very high isolation voltages, up to 15kV, are achieved through the use of high vacuum reed switches. Rhodium or tungsten contacts make these relays suitable for high reliability applications, such as battery management systems, cardiac defibrillators, test equipment and high voltage power supplies.

Applications

• Battery management systems • Cardiac defibrillators

Features & Benefits • 5kV, 7.5kV, 10kV or 15kV isolation • Low contact resistance • 1x10^14 Ωs minimum insulation resistance • PCB or flying leads connections • Switching voltages: 1kV, 3.5kV, 5kV, 7kV and 10kV • Test equipments • High voltage power supplies

• Switching currents: 2A or 3A (depending on contact material) • Carry current: 2A, 3A or 4A (depending on contact material) • UL Approved

Panasonic

PhotoMOS® relays for xEVs

In the field of battery isolation monitoring, Panasonic Industry PhotoMOS® relays constructively surpass conventional electromechanical products in some crucial functionality aspects.

Applications

• Isolation monitoring • Battery monitoring

Coming in PCB-efficient, miniaturized designs – 6 PIN DIP SMD AQV2*HAX for isolation monitoring and 8 PIN DIP SMD AQW2*HAX for other automotive switching purposes – they considerably stand out with their MOSFET-based semiconductor principle of non-aging contact resistance and hence unlimited switching cycles. Low CxR values, high optical isolation between input and output as well as DC and AC/DC load ratings constructively ensure contact reliability and operational safety of the switching requirements. Due to not being conceived on a mechanical but an optical principle, Panasonic Industry PhotoMOS® relays are unaffected by vibration, shock and other conditional effects – a fact that can be considered as utterly crucial within the steadily harsh automotive conditions of operation. Features & Benefits • Tested according to AEC-Q101 • Available for high voltage • 1500V for AQV258HAX • Minimal leakage current (typ. <1nA) • Turn-on time: Max. 0.5ms – 1.0ms • Turn-off time: Max. 0.5ms • Input/output isolation up to 5kVrms • Linear output characteristics • No threshold voltage • Stable on-resistance over the entire lifetime • Compact housing • Highly shock and vibration resistant

Series

U AQV2*HAX 1.500V AQW2*HAX 600V

I

20mA 40mA

Charging Stations/Wallboxes

HE-S relay for 35A with feedback contact

Thanks to the safety contact mechanism conform to EN 61851–1, the Panasonic Industry HE-S 35A relay offers an ideal switching solution for charging stations & wallboxes up to 22kW.

Applications

• Charging cable • AC/DC wallbox • AC/DC charging station • Inverters • Industrial equipment • Uninterruptable power supply (UPS) • Energy management

Able to handle a high resistive load of 35A to 277V AC for 50,000 cycles, this series constitutes the industry’s smallest, high capacity multi-contact power relays. It also provides a mirror contact structure (EN60947-4-1 compliant) that uses 2FormA coupled with 1FormB contact assembly. Features & Benefits • Contact gap 3.2mm • Ambient temperature -40 to +85°C • 2FormA or 2FormA1FormB contact arrangement • Max. switching voltage 480VAC • Switching current 35A • Dimensions 30x36x40mm • Holding power 170 mW with reduced coil holding voltage